Loom.



Patented Dec. 4, |900. R. CROMPTON.

(Applica-tion led Feb. 15. 1900.)

6 Sheets-Sheet l.

(No Model.)

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No. 663,066.` Patented Dec. 4, |900.

R. CROMPTDN. Loom.'

(Applcat'xon filed Feb. I5, 1900.) (no Model.) s sheets-sas: z.

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Re. 663,066. Patented Dec. 4, |900.

` B. CRMPTUN.

LOOM.

(Application led Feb. 15. 1900.).

(No Model.)

6 Sheets- Sheet 3 WITNEESEE.; lNvENTuFL- WM %4. W ,wmffff "4 No. 663,066. .Patented Dec. 4, |900.

B. CBOMPTDN.

LOOM.

(Appxicaeann filed Feb. 15` 1900.)

(No Model.) 6 Sheets-Sheet 4,

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Patented Dec. 4, |900.

LOOM.

(Application med Feb. 15, 1900.)

6 Sheets-Sheet 5.

(No Model.)

INVENTU Fl- WiTNEEEEE.

R. CROMPTON. IJLOM.

('Applian ma Feb. 15. woo.)

Patented Dec. 4, |900.l

I (lo Model.) 6 Sheets-Sheet 6.

WITNEEEEE. d i L INVENTDR @wf-M- E www;

i trice,

RANDOLPH OROM1TON,OF VORCESTER, MASSACHUSETTS, ASSIGNOR TO THE OROMPTON da KNOWLES LOOM \VORKS, OF SAME PLACE.

LOOM.

SPECIFICATION forming part of Letters Patent No. 663,066, dated December 4, 1900.

Application filed February 15, 1900. v Serial No. 5,317. LNo model.)

To @ZZ whom, t 11i/Coy con/cern.-

Beit known thatI, RANDOLPH CROMPTON, a citizen of the United States, and a resident of Vtorcester, county of Worcester, and State of Massachusetts, have invented an Improvement in Looms, of which the following description, in connection with the accompanying drawings, is a specification, like characters on the drawings representing like parts.

The invention to be hereinafter described relates to that class of looms which, in addition to the usual weft stopping mechanism, is provided with warp stop and filling-changing mechanisms of any usual or preferred construction, the object of the invention being to effect the stopping of the loom in case of a defective condition of' the warp or weft' and to change the filling when that in the active shuttle becomes exhausted to a predetermined amount, the operation of' the warp stop mechanism and the llingchanging mechanism being under the control of electric devices the electric condition of which is changed whenever the warp-thread breaks o r becomes slack or whenever the iilling becomes Y nearly exhausted in an active shuttle.

In the form in which it has been herein chosen to illustrate the invention the arrival of a warp-controlled device,sometimes termed a detector, into an abnormal position, occasioned by the breaking or slacking of a warp-thread or the exhaustion of a filling to a predetermined amount, causes a magnet to become energized,which in turn puts into operative position suitable intermediate mechanism, which may be engaged, as herein disclosed, by a moving actuator, the time of such engagement with reference to the movement of the actuator determining whether the stopping or filling-changing mechanism shall be operated.

In case both the warp-detectors and fillingdetecting devices indicate at the same time an abnormal condition in the warp and a practical exhaustion of the filling in the active shuttle the intermediate mechanism is so a1'- ranged, as will be hereinafter described, to piace the filling-changing mechanism under the control of the warp stop-motion, so that 5o the former will not operate to change the filling prior to the completion of the operation of the stop mechanism, sufficient filling remaining in the shuttle to lay two or more picks, so that on restarting of the loom the filling-detector will at once indicate a practical exhaustion of the filling, whereupon the filling-changing mechanism will operate to supply fresh filling.

1n my improvements I Apreferably place the illing-detector mechanismat one end of the lay and the lilling-changing mechanism near the opposite end of the lay in order to aord more time between the indication by the filling-detector and the time of the insertion of' fresh filling, whereby I am enabledto use more easily-working and positively-acting devices than if both detector and filling-changing mechanism were located at the same end of the lay and were consequently actuated at one and the same stroke of the lay; but it is evident that this filling-detector miglitbe placed at the same end of the lay as the lilling-changer and this same mechanism arranged to operate on the shuttles return from yacross the loom. Since in this construction the shuttle leaves the box at once after the filling-detector mechanism has indicated a practical exhaustion of the filling and the current is thus interrupted, the parts would assume their former non-lilling-changing position were it not for some provision to counteract this tendency, and I have therefore so constructed the intermediate device as to coutinue the position of operation of the fillingchanging mechanism until the actuator has 'acted upon the same and caused a change of filling in the exhausted shuttle as the latter assumes position in the box at the supply end of the lay.

In the drawings and following description I have disclosed my invention as .preferably applied to a sh Little-shifting loom of' the character set out in United States Letters Patent No. 614,369, dated November l5, 1898; butit is to be understood that my invention is equally applicable to any other type of loom having a lilling-changing mechanism-such, for instance, wherein the filling or filling-carrying bobbin is changed in the shuttle when the filli ing is practically exhausted-and I desire it be i understood in the following description and claims when reference is made to a filling# changing mechanism that I mean to include thereby any form of such mechanism which serves to supply the leoni with either a fresh shuttle or the same shuttle with a fresh or filled bobbin or carrier. A

In the drawings, Figure 1 is an end view of a loom, showing the shuttle-changing mechanism and corresponding to Fig. 2 in Patent No. 614,369, above referred to, with some parts left off. Fig. 2 is a sectional elevation through the loom, showing my improvements applied thereto. Fig. 3 is a front view of the warp detectors and contacts looking in the direction of arrow a, Fig. 4. Fig. 4 is a'section on line 4 4, Fig. 3, looking in the direction of arrow b, same ligure, some of the detectors being also shown in place. Fig. 4 shows on an enlarged scale the parts shown in the upper part of Fig. 4 without the drop devices. Fig. 5 is an enlarged detail view of the sectionalshuttle-box and shuttle and electric filling-detector attachment shown in Fig. 2. Fig. 6 is an enlarged detail view of the mechanism shown at the front of the loom at the right in Fig. 2. Fig. 7 is a detail front view of some parts shown in Fig. 6 looking in the direction of arrow c, same figure. Fig. 8 shows some of the parts shown in Fig. 6 through which the filling-changing mechanism is operated. Fig. 9 shows the opposite position of the parts shown in Fig. 8. Fig.

' 10 is an outer detail end View of the breastbeam, showing the shipper-lever and some parts of the Warp stop-motion shown in Figs. 6 and 7. Fig. 11 shows the stopping position of the parts shown in Fig. 10; and Fig. 12 is a perspective view of the shipper-actuating mechanism, corresponding somewhat to Fig. 11, but showing additional parts shown in Figs. 6 and 7.

The loom-frame A, crank-shaft B, pitman B', the under or cam shaft B2, the gears B3 and B4, the mutilated gears G, shaft e8, link e5, lever 63, link e2, stud b3, shuttle-box rod D, i

mutilated gear f, fork f3, shaft 39, arm 013, link c, joined to the elbowfle ver f5, pivoted at 20L on stand BX, the elbow-lever cl2, mounted on stud e14L and having stud or roll 26, the shuttle-feeder h, mounted on lever or bar h3, pivoted on a stud h4, arm bsx, spring 7130, inclined guides hf and c5, and roller h1z are and may be all as fully set forth in Letters Patent No. 614,369 and need not be further described.

Preferably attached t0 the frame of the loom subjacent to the breast-beam 11 is an electromagnet 12, having an armature 15, which controls the operation of the Warp stop and filling-changing mechanism through intermediate mechanism, as will hereinafter be fully described. The electromagnet 12 has connected thereto Wires 13 and 14 of an electric circuit the electric energy whereof is derived from any suitable source-as, for instance, a series of jars 9, which constitute a y frame.

battery. In the electric circuit thus formed is interposed the devices for detecting any abnormal condition of the warp-threads and the means for detecting a practical exhaustion of the lling in the active shuttle in a manner that should a Warp-thread break or become slack or should the filling become nearly exhausted the circuit will be closed, thereby energizing the magnet 12, which in .turn will attract and move the armature 15 and through the intermediate devices to be described will cause either the warp stopping mechanism to be actuated to stop the loom or the filling-changing mechanism to be set in action to supply fresh iilling according as to whether the indication has been caused by defects in the warp or weft.

In the rear of the lay I provide any suitable form of devices to detect an abnormal condition in the warp-threads, or any of them, and in the present instance such devices preferably consist of two series of detectors or drop devices 1, Figs. 2, 3, and 4, extending vertically between two sets of bars 2, supported at their ends on stands 3, secured to the loomframe. Each drop device has a hole 1 therein, through which a Warp-thread 4 passes, and an elongated slot 1", through which a guiding and supporting bar 5 extends, said warpthreads resting on the upper set of bars 2. The bars 5 are secured at their ends to the stands 3', and each bar 5 is made in two parts and of electrical conducting material. The part 5 of the bar in this instance extends in a longitudinal slot in the upper part of the bar 5 and is insulated therefrom, as shown in Fig. 4a at 6. A binding-post 7 is vconnected with the two parts 5, and a second bindingpost 7 is connected with the stand 3". A wire 8 leads from the post 7 to one pole of a batter7 made up of jars 9 or any suitable source of electric energy, and a Wire 10 leads from the post 7 to the other pole of the battery, (see Fig. 2,) the said wires 8 and 10 being also connected to the wires 13 and 14 at 13 and 14', leading to the electromagnet 12.

In its normal position each drop device or detector 1 (shown at the left in Fig. 4') is sus- Dended on its warp-thread 4 and held out of contact with the part 5' of the bar 5; but

.upon the breaking of a warp-thread its dethe bar 5 and stand 3' and binding-post 7 to the wire 10 to complete the circuit through the electromagnet 12. The armature 15 of the electromagnet 12 is connected by a wire 15 with the lower end of a pawl 16 of the intermediate mechanism, pivoted upon one end of a lever 17, pivoted at 17 upon the loom- (See Figs. l0 and 11.) The opposite projecting end 17" of the lever 17 rests against the shipper-lever 18, (see Figs. 10 and 11,) which is held in the notch of a stand on the ICO loom-frame to keep the belt on the drivingpulley when the loom is in operation in the ordinary way.

A lever 19 (see Fig. 2) is centrally pivoted at 20 on the loom-frame and carries at one end a roll or pin 21, which travels in a groove 22 in acam 23, fast on the bot-tom shaft 24. The opposite end of the lever 19 has pivotally attached thereto the lower end of a vertically-moving actuator or rod 25, supported at its upper end in a stand 26, secured to the loom side. The cam 23is so timed in its movement of the lever 19 that the rod or actuator 25, connected with said lever, will commence to make its upward movement While the shuttle is at the filling-supplying end of the loom and commence to make its downward movement when the shuttle is at the filling-detector end of the loom. The relation ofthe parts is such that the rod 25 is caused to make an up or a down movement during one cycle of movements of the lay. The upper end of the rod or actuator 25 has a hook 25' thereon, which extends in the path of and is adapted to engage upon the downward movement of said rod 25, through lever 19 and cam 23, the upper end of the pawl 16 in case through wire 15, the upper end of said pawl is moved outwardly by the armature 15, when a current is established and the circuit closed by the dropping of one of the warp-stop-motion devices or detectors 1. The downward motion of the rod 25 through pawl 16 moves the lever 17 and causes the end 17H thereof to engage the shipper-lever 18 and detach it from its retaining-notch, as shown in Fig. 11, and stop the loom. It will thus be seen that by means et' the warp stop-motion and electrical connections the loom is automatically stopped upon the breaking of a warp-thread. In starting the loom after the warp drop device has been restored to its normal position the movement of the shipper-lever 1S to its lirst position returns the lever 17 to its normal position, (shown in Fig. 10,) and the cir-` cuit being broken the spring 26', connected with the pawl 16, returns it to its normal position out of the path of the hook 25 on the upper end of the rod 25, said hook having been disengaged from the pawl 16.

In the form of electric lling-detector mechanism shown in the drawings the shuttle is provided with a feeler bearing upon the filling at the base of the bobbin and adapted upon the withdrawal of the filling to a predetermined point, usually to that of leaving only a few picks before exhaustion, to make an electrical connection and close the circuit when the shuttle is in the shuttle-box next the shipper-lever by contact with insulated plates att-ached to the shuttle-box and connected by wires, in this instance, to the circuit including the warp stop-motion above described. drawings, the shuttle 27 is provided with a spring 28, (see Fig. 5,) fastened by a screw 29 In this instance, as shown in the to the side of the shuttle near the base thereof. The spring 2S acts as a feeler or detector and bears on the filling 30 on the bobbin 31. The screw 29 exten ds through the side of the shuttle and engages or contacts with the binder- `post 32, insulated in the frame 33 at the back ofthe shuttle. From the post 32 a wire 34 connects with the wire S at 13 of the warpstop-molion circuit, which wire, as above stated, through wire 13 leads to the electromagnet 12, as shown in Fig. 2, and also to the battery 9 or other source of electric energy. The free end of the detector i'eeler or spring` 2e' when the filling 3001i the bobbin 3l is exhausted to a predetermined point engages a contact pin or piece 35, extending through the side of the shuttle, and engaging or contacting at its inner end with the binder-post 36, insulated on the frame 33 at the back of the shuttle, similar to post From the post 36 a wire 38 connects with wire 10 of the warp-stop-motion circuit, which wire,as above stated, through wire 14 leads to the electromagnet 12, as shown in Fig. 2, and to the battery 9 or other source of electric energy.

It will be understood that when the detectorfeeler or spring 28 by reason of the reduction of the filling on the bobbin contacts with the pin 35 the circuit is closed, and through wires 3S and 14 and 34 and 13 the armature 15 is moved to move the pawl16 into the path of the vertically-moving rod 25, which at this time, however, is in lowered position and about to move upward. When the circuit is closed, as above described, the shuttle is in the end of the lay next the shipping mechanism, and the rod 25 by the turning of the operating-cam is in its downward position or about to move upward. Consequently the shipper-lever 1S will not be detached from its holder by the engagement of the hook 25 on the rod 25 at this time; but the operation of the mechanismrwill be as hereinafter described.

At the opposite end of the loom from the shuttle-box, which carries the filling-detector mechanism above described, is the fillingsupply mechanism, (shown in Fig. 1,) and which in this instance is similar to the iilli ngsupply mechanism shown in United States Patent-No. 614,369, and particularly Fig. 2, to which reference may be had.

Upon the shaft 39 is fast a lever 40, projecting under the breast-beam and carrying at its outer extremity and near the verticallymoving rod 25 a pawl 41, pivoted uponit, projecting` downward (see Figs. S and 9) and constituting a part of the intermediate mechanism between the actuator 25 and the filling-changing mechanism. Near the upper end of the vertically-moving rod 25 is fast a collar or hub 42, secured by a set-screw 42', (see Fig. l2,) and extending out from said hub and upwardly in line parallel with the rod 25 is an arm -1-3, notched on its front edge at 43', said arm 43 moving with the rod 25 and be- IOO IIO

the end of said pawl may extend in the path of the arm 43. Upon the upper part of the pawl 41 above its fulcruin is pivoted a latch 41', moving in a plane at right angles to the plane of movement of the pawl 41 and with its outer end 41"l extending over and adapted to engage a notched extension 16' on the upper end of the pawl 16, pivoted upon the end of the lever 17, which acts to detach the shipper -lever 18 from its catch, as above described. When the upper end of the pawl 16 on the lever 17 is moved by the armature 15 under the indication of the filling-detector, as above described, the end 41 of' the latch 41 will be in position to and will drop into the notched extension 16' on the pawl16, as shown in Figs. 6 and 7, and when the armature 15 is released by the breaking of the current as the shuttle leaves the box and the pawl 16 is returned to its normal position, as above described, the pawl 41 by reason of its engagement with the notched extension 16' on said pawl will be moved into position with its lower end to` be engaged by the notch 43 on the arm 43, (see Fig. 9,) when the rod 25 makes its upward movement through the cam 23 and lever 19, and through lever 40 turn the shaft 39 to put into operation thefillingsupply mechanism at the other end of the loom, as above described. The downward motion of the rod 25 and arm 43 through the revolution of the cam 23 will release the pawl 41 and allow the spring 44 to return the pawl 4l toits normal position (shown in Fig. 8) and by such movement of parts disengage the latch 41 from the notched extension 16 on the lever 16. It will thus be seen that in case of the filling becoming nearly exhausted the circuit is closed through the detector feeler or spring 28 contacting with the plates or binder-posts on the shuttle-box at the end of the loom opposite the filling-supply mechanism, as above described, and the armature 15 is thus operated to move the pawl 16 and put it in its outward position (shown in Fig. 11) and allow the latch 41 to engage the notched extension 16 on the pawl 16; but the hooked rod 25 is then in its lowered position, so as not to engage the pawl 16 and move, the shipper-lever 18, as above described, and stop the loom. As the shuttle is thrown out of the box which' has the contact-plates or binder-posts the circuit is broken and the armature 15 released, and the lever 16,1'eturned by the spring 26 to its normal position, Fig. 6, moves the lower end of the pawl 41 by reason of the engagement of the latch 41' with the hooked extension 16 thereon, into the path of the shoulder 43 of the arm 43 of the rod 25,which as it moves upwardly causes said shoulder to engage with the pawl 41' and through lever 40 turn the shaft 39and put into operation the filling-supply mechanism,

as above stated.

The operation of the mechanisms above deing so located relatively to the pawl 4l that l scribed will be readily understood by those skilled in the artin connection with the drawings and is, briefly, as follows: When one of the drop devices 1 of the Warp stop-motion drops by the breaking of its warp-thread and a current is established and moves the arma# ture 15 and places the pawl 16 in position to be engaged by the rod 25 in its downward movement, thecnrrent will remain on the circuit in whatever position the loom may be until in the operation of the loom the shuttle will arrive at the filling-detector end of the loom, at which time the rod 25 is commencing its downward movement, and its hooked end will engage the pawl 16 and through intermediate mechanism operate the shipper-lever and stop the loom, as above described. If, however, the drop devices 1 of the warp stopmotion are in their normal position, supported on the unbroken warp-threads and with no current established through any of them and the filling in the active shuttle should become so nearly exhausted that the spring 28 engages the contact-pin 35, then when the shuttle arrives at the shuttle-box, which has the binder-posts 32 and 36, the screw 29 and contact-pin 35 will contact with them and a current will be established which will also act through the armature 15 to move the pawl 16 forward, allowing the latch 41' to drop into the notched extension 16 on the pawl16. The rod 25 is at this time in its upward position, and as the shuttle immediately after the lay comes forward is thrown from the box the circuit will be brokenand the armature 15 released, carrying the pawl 16 back into its normal position and with it through the latch 41 place the end of the pawl 41 into the path of movement of the arm 43 on the rod 25, the movement of which will move the lever 40 and turn the rod 39 and put into operation the filling-supply mechanism and supply fresh filling while the loom continues to run. It will thus be seen -that whenever a drop device of the warp stop-motion by the breaking of a warp-thread falls and establishes a current it acts upon the armature and the loom is stopped without any regard to a current being established by the exhaustion of the filling, while if the filling-detector in the shuttle establishes a current by the near exhaustion ofthe filling upon the bobbin then the filling-supply motion will act to supply fresh filling but in case there'is no fresh filling to vbe supplied the loom will lbe stopped in the ordinary way IOO IIO

by its weft stop mechanism of usual construction and operation. l

It will be noted that I provide the loom with the usual weft-fork-t, secured to the usual slide t, which on breaking of the weftthread will be moved by the ordinary wefthammer, ynot necessary here to show, since it is common and well known in the art, to cause the shipper 18 to ship the belt, and consequently stop the loom.

While I have shown a particular kind of warp and weftdetecting mechanism in order toexemplil'y the application ol' my invenlinn, it is to be understood that I do not limit my invention to either of these particular constructions; but I regard any form of warp or weft detecting mechanism within the scope of my invention, provided the former will detect a breakage or slackness in a warp-thread and the latter will indicate ordetect the near exhaustion of the filling in an act-ive shuttle.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is-

l. In a loom the following instrumentalities, viz: a filling changing mechanism, a warp stop mechanism, and electrically-controlled devices common to the filling-changing and warp stop mechanisms for operating the filling-changing mechanism when the filling has become exhausted to a predetermined amount and to stop the loom when a fault occurs in the warp.

2. In a loom the following instrumentalities, viz: a series of warp-detectors to detect an abnormal condition in the warp-threads, a filling-detector to detect the exhaustion of the filling to a determined amount, a stopping mechanism, a filling-changing mechanism, and electrically-controlled means common to said mechanisms to stop the loom on occur-` rence of a defect in the warp and to actuate the filling-changing mechanism when the filling has to be changed.

3. In a loom the following instrumentalit-ies, viz: a series of warp-detectors to detect an abnormal condition in the warp-threads, a filling-detector to detect the exhaustion of the filling toadetcrmined amount, a stopping mechanism, a filling-changing mechanism, and electrically-controlled means common to the said two mechanisms to stop the loom on occurrence of a defect in the Warp and to operate the filling-changing mechanism when the filling is to be changed, and means to stop the loom on breakage of the filling.

4. In a loom the following instrumentalities, viz: a warp stop mechanism made operative on occurrence of a defect in the warp, a filling-changing mechanism for vchanging the filling when the same has become exhausted to a determined amount, and electrically-actuated devices for placing one of said mechanisms under control of the other.

5. In a loom the following instrumentalities, viz: an electrically-controlled Warp stop mechanism made operative on the occurrence of a defect in the warp, an electrically-controlled filling-changing mechanism made operative on the depletion of the filling to adetermined amount, and devices common to the warp stop and filling-changing mechanism to place the latter under control of the former when both of said mechanisms are simultaneously operated.

G. In a loom the following instrumentalitirs, viz: a series of warp-detectors adapted to be maintained in inoperative position by normal condition of the warp-threads, a filling-detector, astopping mechanism,a fillingchanging mechanism, and an intermediate device between the warp and filling detectors and the stopping' and lining-changing mechanism to determine which of said mechanisms shall operate.

7. In a loom the following instrumentalities, viz: a series of warp-detectors adapted to be maintained in inoperative position by normal condition of the warp-threads, a lling-detector, a stopping mechanism, a fillingchanging mechanism and an electrically-controlled device intermediate said warp and filling detectors andsaid stopping and fillingchanging mechanism to determine which of the said mechanismsshall be made operative.

8. In a loom the following instrumentalities, viz: an electrically-controlled warp stop mechanism made operative on the occurrence of a defect in the warp, and electrically-controlled filling changing mechanism operative on depletion of the filling to a predetermined amount and devices under the control of the warp stop mechanism to arrest the action of the filling-changing mechanism when both of said mechanisms are operative at the same time.

9. In a loom the following instrumentalities, viz: a series of warp-detectors adapted to be maintained in inoperative position by normal condition of the warp-threads, a filling-detector, a stopping mechanism, a fillingchanging mechanism, au actuator for said mechanism and electrically-coutrolled intermediate devices for placing one or the other of said mechanisms under control of the actuator.

IO. In a loom the following instrumentalities, viz: a series of warp-detectors, a fillingdetector, a stopping mechanism, a fillingchanging mechanism, an actuator for said mechanisms, intermediate devices for placing the stopping or filling-changing mechanism under control o'f the actuator, an electric circuit including the warp and filling detectors, an electromaguet and armature, and connections between the latter and the intermediate devices.

ll. In a loom the following instrumentalities, viz: an electrically-controlled warp stop mechanism, an electrically-controlled fillingchanging mechanism at one end of the lay, a filling-detector at the opposite end of the lay, au actuator for said mechanisms, and devices to delay the actuation of the filling-changing mechanism until the shuttle arrives at the changing end of the lay.

l2. In a loom the following instrumentalities, viz: a series of warp-detectors, a fillingdetector, an electromagnet in electric circuit with said warp and filling detectors, a stopping mechanism, a filling-changing mechanism, an armature for said electromagnet., au

IOO

IIO

6 Gespec actuator, intermediate devices between the name to this specification in lthe presence of stopping and filling-changing mechanisms two subscribing Witnesses. and actuator controlled by the armature for' Y operating the stopping o1- lling-changing RANDOLPH CROMPTON 5 mechanism according as the filling or` warp Witnesses:

detectors have indicated. CHARLES M. THAYER,

In testimony whereof I have signed my J. FRED HUMES. 

